Home / 129,868.40-194,802.60-41,128.85

Finding the Fourth Proportional to 129,868.40, 194,802.60 and 41,128.85

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Solution

The fourth proportional to 129,868.40, 194,802.60 and 41,128.85 is: 61,693.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,868.40 : 194,802.60 = 41,128.85 : x
  2. Step 2: Convert to fraction form
    129,868.40/194,802.60 = 41,128.85/x
  3. Step 3: Cross multiply
    129,868.40x = 194,802.60 × 41,128.85
  4. Step 4: Simplify right side
    129,868.40x = 8,012,006,915.01
  5. Step 5: Solve for x
    x = 8,012,006,915.01/129,868.40
  6. Step 6: Final answer
    x = 61,693.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.